Results 111 to 120 of about 1,181 (156)
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Diapause induction in adults of three Rhipicephalus appendiculatus stocks
Experimental & Applied Acarology, 1999Newly-moulted adults of three Rhipicephalus appendiculatus stocks, originating from Kenya, Zambia and Zimbabwe, were kept in different photoperiods (12h:12h, 13h:11h and 14h:10h light:dark). The stock originating from Kenya showed almost no behavioural diapause in any of these day lengths, whereas virtually all individuals of the Zimbabwean stock ...
Madder, M. +3 more
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Immunoglobulin G binding proteins in male Rhipicephalus appendiculatus ticks
Parasite Immunology, 1995SummaryThree abundant immunoglobulin G binding proteins (IGBPs) of29kDa (IGBP‐MA), 25kDa (IGBP‐MB), and 21 kDa (IGBP‐MC) were isolated from partly fed male Rhipicephalus appendiculatus ticks using an agar‐ose‐IgG column. After separating the proteins by SDS‐PA GE, each individual IGBP band was cutou tfrom the gel and used to raise antiserum in guinea ...
Wang, Hui, Nuttall, Patricia A.
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Research in Veterinary Science, 1987
Two groups of rabbits infested repeatedly with Rhipicephalus evertsi evertsi and R appendiculatus acquired resistance as evidenced by reduced ectoparasite engorged weights and development of anti-tick antibodies in the hosts. The enzyme-linked immunosorbent assay (ELISA) using salivary gland antigens of R appendiculatus was able to detect antibody ...
B C, Njau, M, Nyindo
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Two groups of rabbits infested repeatedly with Rhipicephalus evertsi evertsi and R appendiculatus acquired resistance as evidenced by reduced ectoparasite engorged weights and development of anti-tick antibodies in the hosts. The enzyme-linked immunosorbent assay (ELISA) using salivary gland antigens of R appendiculatus was able to detect antibody ...
B C, Njau, M, Nyindo
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Journal of Medical Entomology, 1991
Rhipicephalus duttoni Neumann is a common tick species in Angola, where its distribution is sympatric with that of R. zambeziensis Walker. Evidence is presented supporting R. duttoni as a distinct species of the R. appendiculatus group. R. duttoni showed a species-specific glucose phosphate isomerase isoenzyme pattern. The ticks, which are difficult to
Gomes, A. F., Wouters, G.
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Rhipicephalus duttoni Neumann is a common tick species in Angola, where its distribution is sympatric with that of R. zambeziensis Walker. Evidence is presented supporting R. duttoni as a distinct species of the R. appendiculatus group. R. duttoni showed a species-specific glucose phosphate isomerase isoenzyme pattern. The ticks, which are difficult to
Gomes, A. F., Wouters, G.
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Geographic variation in diapause response of adult Rhipicephalus appendiculatus ticks
Experimental & Applied Acarology, 2002Diapause in adults of the African brown ear tick Rhipicephalus appendiculatus is dependent on latitude and stock origin. Lower latitude populations, that is, those nearer the equator, show no diapause response to long or short day exposure. Diapause response to short daylengths is found in higher latitude populations, further south, and increases with ...
Madder, M. +5 more
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In vitro growth of tick tissues (Rhipicephalus appendiculatus neumann, 1901)
Experimental Parasitology, 1962Abstract 1. 1. The medium, in which initial outgrowths and long survival of several kinds of tick tissue cells occurred, contained Hanks' balanced salt solution, amino acids and vitamins of Eagle's basal medium together with 20% ox serum. 2. 2.
H M, MARTIN, B O, VIDLER
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Drop-Off Rhythms of Engorged Rhipicephalus appendiculatus (Acarina: Ixodidae)
The Journal of Parasitology, 1982Diurnal drop-off rhythms were exhibited by all three stages of Rhipicephalus appendiculatus engorging on cattle in stalls under natural conditions of light and temperature. Most engorged larvae dropped from the host between 1000 and 1400 hours, most nymphs between 1200 and 1800 hours, and most adults between 0600 and 0800 hours.
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Production of Rhipicephalus appendiculatus with High Infections of Theileria parva
The Journal of Parasitology, 1981Theileria parva, the main protozoan responsible for East Coast fever (ECF) of cattle, is the most important livestock parasite in East and Central Africa. A high priority in ECF research is the development of methods for harvesting large numbers of T. parva sporozoites from the salivary glands of the tick vector, Rhipicephalus appendiculatus.
A S, Young, B L, Leitch
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Resistance Between Stages of the Tick Rhipicephalus appendiculatus (Acari: Ixodidae)
Journal of Medical Entomology, 1990The ability of one stage of Rhipicephalus appendiculatus Neumann to induce resistance in a host to the feeding of the next stage in the life cycle was studied using Bos taurus cattle and rabbits. Simple resistance within a stage and cross-resistance between stages was generally less than 50%.
A R, Walker, J D, Fletcher, L, Todd
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Artificial infection of the tick Rhipicephalus appendiculatus with Theileria parva
Research in Veterinary Science, 1979Methods for infecting Rhipicephalus appendiculatus ticks with Theileria parva by injection and by artificial feeding were confirmed and compared. The injection method proved simpler and at best as effective and suggested improvements are described.
A R, Walker +3 more
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